Removable-rim construction.



J. 0.00m. REMOVABLE RIM CONSTRUCTION.

APPLIUATION FILED MAR. 25, 1912.

Patented Dec. 1-, 1914 2 SHEETS-SHEET 1.

INVENTOR) Jiviza Q CaZa, B Y

Y WITNESSES:

ATTORNEY.

J. O. COLE. REMOVABLE RIM CONSTRUCTION. APPLICATION PI'LED 1 11111111 2.

1, 1 1 9,067 Patented Dec. 1, 1914.

' 2 SHEETS ET 2.

WITNESSES: Z

LVVENTOR,

ATTORNE movable or tire rim one Jenn cnannncn on RUBBER COMPAFZJDELAWARE.

iaiaeea.

To all whom it may 0on0 1 Be it known that I, a citizen of the Unitedresiding at Chicopee Hampden and State o invented new and iRemovable-Rim Cons following is a specn This invention rela paratuswhich is Sill make a convenient P.2d. changing tires.

It relates specific-all which a rim (known rim) is permanently f anysuitable means, 5 fixed rim on the fell CLARENCE COLE, as of America,

achusetts. have provements 1n hat class of aplly adapted to ch apparatusin 1 fixed or wheel dato the felly by shrinking the d in which a reeswith the fixed .ed or unfa-stened rim to which it is f.

as the tire is to be placed on the wheel. or I removed therefrom. I Thisclass of apparatus is well known.

It is the object of this invention to provide simple and efiicient meansby which the removable rim can be attached or detached from the fixedrim without any of the inconveniences and loss of time which sometimesoccurs in the known form of apparatus.

Another object of the invention is to 1m prove the details ofconstruction in the class of apparatus referred to.

Other objects of the invention will be disclosed in the. followingdetailed description and ann xed claims.

In the drawings forming part of this application,-Figure 1 a side Viewof the assembled parts of this invention. Fig. is a detail plan viewshowing the position mounting, and relative arrangement of the springsto automatically loosen the fastening devices. Figs. 3, at. 6., and 7are cross sectional views taken on lines 3-.3. 5+5, G,6, and T 7respectively of Fig. 1,- Fig. 7 showing also the removable or tire rimand the manner in which the tire is attached.

As is well known. one of the forms of this kind of apparatus is that inwhich the re movable rim is slipped over the fixed rim and an expandingring extending all the way around the wheel is forced up throughcooperating beveled faces of the ring and fixed rim against thennderside of there movable rim by bolts. lit has been found Specification ofLetters reuse the county of I .iicient means for orro.

' cmcornia time, MASSACHUSETTS, ASSIGNOR TO FISK crrrcornn FALLS,MASSACHUSETTS. A conronarron or MQVABLE-RIM- CQNSTEUGEiQN.

Patented Dec. 1, 1914.

sticn filed March 25, 1912. Serial No. 68$,M5.

for some time the expanding ring is not easily removed and where quickchanges of tires have been desirable, a certain amount of time has beenlost. In the invention herein disclosed this time will be saved.

Referring to the drawings, the felly a .(see F ig. 3) has fixedtheretothe rim 6. i he fastening device a has an inwardly beveled facecooperating with a like face on the felly and fixed rim. On the wholewheel there are four of these fastening devices (see Fig. 1) one of thembeing permanentl'y fixed thereon (see Fig. 5) andthe other three beingattached and detached conveniently by bolts 6 of special construction-Whenever. the bolt 6 of any one of the three detachable fasteningdevices 0 is loosened two springs g (see Figs. 2 and 3)one mounted on'each side of the bolt e,force the device 0 downwardly and radially sothat the holding flange thereof is at or below the level of the fixedrim, thus permitting (when the other fastening devices are alsoloosened) the removal of the tire rim from the position indicated inFig. 7 These springs bear on the bottom of the recesses f in the devices0 and are fastened to the felly under the fixed rim (see Fig. i

It is apparent that the operator needs only toloosen the three bolts 0when the springs automatically place the fastening devices out of theway, whereupon the tire rim 7' may be inovedaxially from the fixed rimat all points except where the fastening device 0 holds it. The rim isslightly tipped at this point and readily removed bodily from anycontact with the wheel.

Where the movable fastening devices are placed at only three pointsaround the wheel, and then only for a small arc thereof,-

' --p'laced"on the fixed rim the latter is usually A jsmaIler indiameter than the removable rim A- collar is, shorter than the turneddown portion, is fastened onthe end of the bolt.

- When'the latter-is turned it moves axially 1a distance-"sufficient toallow the fastening '5."dev1ces.0'1.to move to releasing position,whereupon the collar 70 prevents further ax- ""ial outw ard movement ofthe bolt. The [operator thus loosens the bolts to the required distanceafter which they are left in position for immediate u'se'and canneverlbelost or misplaced.- This structure results in a considerable savingof time and is most important for that. reason, as well as its'z'eonvenience. 7 1

'theremovable or tire rim 'is to be turned down or finished true toreceive the v tire rim. This involves considerable trouble {andexpenseto'avoidwhich the following structure is'used: The' fixed rim isa little and four bosses mare formed'thereon (see FigJlleach one'aboutmidway between two fastening devices 0. These bosses are turned true toreceive the removable rim and when the-fastening'devices care forcedinto holdingposition, there is ample contacting surface between thefixed-and re'niovablerims.

Itis desirable to havea boss with a true sesurface', on the fixed rimadjacent the fas-' tening devices to cooperate with the-latter inholding the removable rim on the fixed trim; In'orderto properlyposition the re- -t},movable,with r respect to the fixed rim, a

awrecess adjacent the permanent or fixed fastening device -'c I Whileapplicant has, described his invenable rims to bindQthe latter;inoperative 51f. positiorn' jeach fastening device having aseparate-wedge -shaped' portion, means-to wedge". thesame'into positionto bind the removable rim on th'e'fixed' ri the point a where saidfastenlng ClQVlCQ 1S placed;- springs'fonthe 'felly and n engagement Idew' ipin "25' is fixed in the former-tolenter tion in; specific detailgthe same may be em ments radially inward upon release thereof with saidwedge shaped portions, 5 springs adapted I to positively andautomatically force the wedge-shaped portion inwardly anddownwardly outof operative position when: the first mentioned means is not inwedgijng-condition,

Q 2. A fixedrim having an inclined face, a removable rim adapted to becarried by the fixed rim, a wedge shaped element adapted to bind theremovable to the fixed rim, a bolt for operating said wedgedshapedelement and resilient means for automatically forcing said wedge-shapedeleby the bolt.

3. In a demountable rim structure, a felly, an inclined surface thereon,a rim fixed to the felly, a removable rim, a series of wedges havingslotted holes then through, bolts in said slotted holes extendingthrough said felly, said bolts adapted, when tightened to force saidwedges upwardly and inwardly on said inclined surface to bind theremovable to the fixed rim, and springs bearing against the uppersurface of said wedges and adapted .when said bolts are loosened tocause-said wedges to travel downwardly and outwardly on said inclinedsurface, whereby said wedges are removed from the axial path-(of saidre-. movable rim.

i. In combinatioma felly having a fixed rim thereon, and a. seriesofbeveled sections around the periphery thereof, a dethe sides of saidchannel, whereby the demountable rim adapted to be held on the fixedrim, one of said rims'being provided with a transverse channel adaptedto position the demountable rim on the fixedrim, means on the other rimadapted to engage mountable rim may be positioned on the fixed run forswinging into registering p o-.

sition therewith and a series of holding deblock, and anoperating bolttherefor passing through the felly and in threaded engagementtherewith,and means to limit the movement of the bolt in"'bothdirections wherebyit is always in position to operate.

o-HN. CLARENCE ooLE,

Witnc sses:'

Hanna Bownn;

